{
  "stock_code": "4523",
  "company_name": "エーザイ",
  "company_color": "#D6007F",
  "industry": "pharma",
  "published": "2026-04-07",
  "updated": "2026-05-13",
  "found": {
    "year": 1936,
    "location": "東京都荒川区",
    "founder": "内藤豊次"
  },
  "listing": {
    "listed_year": 1961,
    "delisted_year": null,
    "unlisted": false
  },
  "is_publish": true,
  "old_name": "日本衛材",
  "name_kana": "エーザイ",
  "old_name_kana": "ニッポンエイザイ"
}